My Battery light has been coming on but not all the time. The first time it happened, I drove straight to O'rielly's (where I got the alternator and have a warranty) to get it checked out and there were no problems. I've kept going for a week now and the light is on more and more. Tonight, I didn't go out becasue the lights seemed dim. I have all my tools ready to take to work that I will need for an alternator change. It's going to be cold. I'm pretty sure that's gotta be it.